amount of austenite transforms to martensite a er heat treatment, still the iron contains some small amounts of retained austenite. X-ray di raction pro les of the investigated alloys a er heat treatment comparing with the as-cast condition are showninFigures (a) (c) . epeaksassociatedwith austenite phase and martensite phase are indicated by and
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Soft annealing of high chromium white cast iron. Materials Science Forum, 455–456 (2004), pp. 290-294. View in Scopus Google Scholar [9] R.L. Pattyn. ... Behavior of hardness and retained austenite in heat treatment of high chromium cast iron for abrasive wear resistance. Transactions AFS, 112 (2004), pp. 899-910. Google Scholar [13]
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A billet of hypoeutectic high-chromium white iron (2.5% C, 19% Cr) was spray formed using gas-to-metal ratios of ~0.9, ~1.0, and ~1.1. ... XRD Investigation on Heat Treatment of High Chrome White ...
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This article presents a discussion on the melting, pouring, and shakeout practices; composition control; molds, patterns, and casting design; heat treatment; and applications of different classes of nickel-chromium white irons and high-chromium white irons.
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Because of castability and cost (much cheaper than stainless steels), high chromium (12-39% Cr) white iron castings of complex and intricate shapes are used for high temperature applications. …
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Abstract: The chemical composition of Cr26 high chromium cast iron and the effects of heat treatment on its hardness, impact toughness were studied in this paper. And its microstructures of this kind of high chromium cast iron treated by different heat treatment technology were studied as well. Their results show that the hardness of the experimental high chromium cast iron is …
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HCWCI is mostly applied as-cast, but it can also be used as a coating material. The carbides in HCWCI microstructure, whose composition depends on alloying and heat …
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In the present work, a methodology was developed combining the practical knowledge on the production technology of high Cr cast iron castings with the use of CT to …
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Keywords: white cast irons, high chrome white cast irons, heat treatment, XRD investigation . ... (53.19%) in as-cast alloy are the highest compared to other iron specimens, i.e. heat-treated
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Moreover, the network eutectic carbides are very stable so that they are not easily eliminated by heat treatment [Citation 3, Citation 8]. Therefore, the microstructure of high-chromium white irons is improved by various heat treatment methods, such as destabilization heat treatment and sub-critical heat treatment [Citation 5, Citation 9–12].
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AI Yunlong, DING Jiayuan, HE Wen, et al. Effects of heat treatment on sliding wear of high chromium white cast iron[J]. Thermal Processing, 2010, 39(3): 46–48. (in Chinese) Google Scholar ZEYTIN H K, YILDIRIM H, BERME B, et al. Effect of boron and heat treatment on mechanical properties of white cast iron for mining application[J].
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High-chromium cast iron (HCCI) is widely used for manufacturing mill rolls due to its high wear resistance, hardness, low cost and good adaptability to manufacture [1,2,3,4].Despite the active application of rolls from high-speed steels, HCCI rolls still occupy a large share of the market [].The cast microstructure of the external layer of rolls from HCCI …
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High Chrome White Iron makes up ~10% of Leth Iron's production. Class/Type % Chrome Typical Hardness (HBW) Class lll Type A: ... ASTM A897 – 06 Austempering is an isothermal heat treatment that involves heating ductile iron castings to between 1550°F and 1750°F in a controlled atmosphere followed by a quench in a bath of molten salt. The ...
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ABSTRACT: A heat treatment process of high chromium cast iron grinding media with trace alloying elements Mo, V, NB was studied. The heat treatment processes of quenching at 980 °C, tempering at 400 °C and 600 °C was adopted.
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ABSTRACT: A heat treatment process of high chromium cast iron grinding media with trace alloying elements Mo, V, NB was studied. The heat treatment processes of quenching at 980 °C, tempering at 400 °C and 600 °C was …
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The experimental results show that appropriate heat treatments contribute to a significant improvement on the mechanical properties of selected alloy of HCWCI. The results …
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Primary analyses of cast microstructure design of high chrome white cast iron grinding media (2) August 16, 2021 - 3:12 am; Primary analyses of cast microstructure design of high chrome white cast iron grinding media (1) August 13, 2021 - 6:44 am; Casting grinding balls making machine July 21, 2021 - 7:32 am; Related Products
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How to heat treat ASTM A532 correctly. Get chrome white iron microstructure notes and heat treating trouble shooting tips. Read our blog today.
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The cutting tools also behaved differently according to the different levels of C-Si content and heat treatment of the work materials. In addition, the study reveals the mechanism of the interactions between CBN tools and high-chromium white cast iron under a range of machining parameters. ... Machinability investigations on high chrome white ...
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High Chromium White Cast Iron, or High Cr White Iron grades are used in wear applications that require some corrosion resistance. One common application using High Chrome White Iron alloys is in Pump and Valve parts for the Mining industry. The high chromium content offers the corrosion resistance and the fine carbides dispersed throughout ...
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The paper is aimed to give an overview on the white cast iron alloys, and particularly high chromium white cast iron alloys, including their classifications, their standard specifications in USA ...
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The high chromium white cast iron (HCWCI) has been on the scene for decades, with expectations to remain there due to its exceptional wear resistance. HCWCI is mostly applied as-cast, but it can also be used as a coating material. The carbides in HCWCI microstructure, whose composition depends on alloying and heat treatment regime, give this special feature to …
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The article describes the results of experimental studies for the effect of thermal treatment (TTM) of G-X300CrMo27-1 high-chromium cast iron samples in the solid-liquid and liquid state on the ...
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Explore the properties of high-chromium white iron, its applications in industries requiring exceptional wear and corrosion resistance, and the impact of heat treatment on its hardness and microstructure. Learn about the optimal heat …
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The invention discloses a heat-treatment method of high-chromium wear-resistant white cast iron Cr28. According to the invention, high-chromium wear-resistant white cast iron Cr28 is heated to 1000-1050 DEG C; the white cast iron Cr28 is heated and the temperature is maintained for 1.5-3h; the white cast iron Cr28 is air-cooled to room temperature; the white cast iron Cr28 is …
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An alloy with carbon and chromium in the range of 2.0 to 2.5% and 20 to 25%, respectively, with the addition of Mo and Ni in the range of 1.0 to 1.5% each when heat-treated at a quenching temperature of 1010 °C and tempering temperature of 550 °C produces a hardness in the range of 54 to 56 HRC and a microstructure that consists of discontinuous bands of high …
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High chrome white cast iron with 90 mm diameter ball sample supplied by Çemaş A.Ş from Turkey has been used. ... in which various heat treatment conditions are established for the samples, is ...
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There is a huge demand for high-performance materials in extreme environments involving wear and corrosion. High chromium white cast irons (HCWCIs) display better performance than many materials since they are of sufficient hardness for wear protection and can be tailored in chemical compositions to improve corrosion resistance; however, their …
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a) Impact toughness of the high chromium iron alloys with different contents of RE; (b) Weight loss curves for the high Cr iron alloys with different contents of RE in heat-treated conditions [44].
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Different combinations of critical and subcritical heat treatments variously modify the initial as cast microstructure of high chromium white cast …
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